Cooling device for engines



i. D. HOUSEMAN. COOLING DEVICE FOR ENGINES.

APPLICATION FILED OCT. 21. ms.

.1 322,443. Patented Nov. 18, 1919.

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' MOI M Q13 ISAAC DOUGLAS HOUSEMAN, OF CONDE, SOUTH DAKOTA.

COOLING DEVICE FOR; ENGINES.

Specification of Letters Patent.

Patented Nov. 18, 1919.

Application filed October 21, 1918. Serial No. 259,014.

To all whom it may concern:

Be it known that I, ISAAC DOUGLAS HOUSEMAN, a citizen of the United States, residing at Condo, in the county of Spink and State of South Dakota, have invented new and useful Improvements in Cooling Devices for Engines, of which the following is a specification.

This invention relates to cooling devices for internal combustion engines, the object in view being to produce a simple and inexpensive attachment for cooling engines of the class described, which attachment may be readily applied in a short space of time to the engine and driven by the fan belt of the engine, said attachment operating to force air under pressure directly into contact with the circulating water in the water jackets of the cylinders of the engine preferably adjacent to or in line with the heads of the cylinder, whereby the circulation of the water is increased, a more rapid flow thereof obtained, and the water cooled by the direct action of the cold air which is forced into and caused to commingle therewith. The air under pressure after its cooling and driving effect on the circulating water is directed into the radiator adjacent to the top of the latter from which it is liberated through a suitable vent such as the overflow pipe, or the filling neck of the radiator.

The invention is also particularly adapted for motor vehicles and especially tractors where the latter are opera-ted at a standstill for driving, farming, and other machinery.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts, as herein described, illustrated and claimed.

In the accompanying drawings:

Figure 1 is a side elevation of a multiple cylinder internal combustion engine, showing the cooling device of this invention in its applied relation thereto, the cooling de vice being shown in section.

Fig. 2 is a front elevation of the same, showing the casing of the cooling device in vertical section.

Referring to the drawing, 1 designates a multiple cylinder internal combustion engine, the same being conventionally illustrated. 2 designates the engine cooling fan, 3 the fan shaft, and 1 the fan driving belt which passes around and is actuated by the driving pulley 5 on the crank shaft 6 of the engine. 7 designates the radiator which is shown in its usual relation to the engine, 8 designating the bottom connection or pipe which leads from the radiator to the water jacket of the engine and 9 representing the return pipe which leads the water from the engine back to the radiator, in which the water is cooled in the usual way.

In carrying out the present invention, I provide a fan casing or drum represented at 10, the other part of said drum being substantially cylindrical so as to receive and form a housing for a fan or air compressor 11 shown as provided with a plurality of blades 12, the outer edges of which sweep in close proximity to the inside wall of the casing. The casing is reduced in size toward its upper end as shown in Fig. 2 and at the upper small end thereof, the casing communicates with an air pipe 13 which extends along the upper part of the. engine and is connected at the point let with the water jacket of the engine adjacent to the head of the latter and directly in line with the rear end of the return water connection 9, whereby the air passing through the pipe 13 is forced into the water space of the head of the engine so as to come in direct contact with the heated water which rises through the jacket or jackets of the engine, said air which is of atmospheric temperature being thus adapted to cool the hottest portion of the water and also propel the same directly through the return water connection 9 to the radiator. The air after absorbing the heat from the water is directed into the radiator from which it is liberated through the usual overflow pipe or vent in the cap or filling neck of the radiator as may be preferred.

The fan 11 is mounted fast upon a shaft 15 which extends through that wall of the casing 10 which is adjacent to the fan 3, where said shaft 15 has fast thereon a pulley 16 around which the fan belt 4 is placed as shown in Fig. 2. The pulley 15 is considerably smaller than the driving pulley 5 on the engine shaft and therefore the fan 11 is driven at a comparatively high speed, enabling it to force a strong current of air through the pipe 15 and into the water jacket of the engine, insuring a thorough cooling action of the air on the water and an accelerated movement of the circulating water as it leaves the engine and returns to the radiator.

From the foregoing description taken in connection with the accompanying drawing, it will now be seen that the device is simple, inexpensive to manufacture, and may be readily applied to an internal combustion engine of any kind, without any alteration of the engine and driven by the belt which is now used to drive the cooling fan of the engine. The casing 10 may be secured by any suitable fastening means 17 to the engine or to any other convenient part of the vehicle in conjunction with which the engine and cooling device are used.

I claim The combination of an internal combustion engine having a water jacket, a radiator, outgoing and return water connections between said radiator and engine, a fan cas ing having an enlarged portion disposed in advance of the engine and a reduced portion vertically disposed, said reduced portion being extended horizontally above the engine and connected with the water jacket of the engine in a line with the rear end of the returnwater connection, a shaft journaled in said casing and projecting therefrom, and a pulley fixed on said shaft exteriorly of the casing and adapted to be driven by the fan belt of the engine.

In testimony whereof I aflix my signature.

ISAAC DOUGLAS HOUSEMAN. 

